C0226

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C0226, C0236, C0246, C0256, C1225: SFR Solenoid Circuit
C1225 - SM Solenoid Circuit

DESCRIPTION

These solenoids turn on when signals are received from the skid control ECU and control the pressure acting on the wheel cylinders to control the braking force.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
* When replacing the brake actuator assembly, perform calibration Programming and Relearning.
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. RECONFIRM DTC

HINT
These codes are stored when a problem is detected in the brake actuator assembly.

The solenoid circuits are in the brake actuator assembly.

Therefore, solenoid circuit inspections and solenoid unit inspections cannot be performed. Be sure to check if any DTCs are output before replacing the brake actuator assembly.

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Turn the ignition switch off.

(c) Start the engine.

(d) Drive the vehicle at a speed of 20 km/h (12 mph) or more for 30 seconds or more.

(e) Check if the same DTC is output Reading and Clearing Diagnostic Trouble Codes.

Result

HINT
* If a speed signal of 6 km/h (4 mph) or more is input to the skid control ECU with the ignition switch ON and the stop light switch off, the ECU performs self-diagnosis of the motor and solenoid circuits.
* If the normal system code is output (no trouble codes are output), slightly jiggle the connectors, wire harnesses and fuses of the brake actuator assembly. Make sure that no DTCs are output.
* If any DTCs are output while jiggling a connector or wire harness of the brake actuator assembly (skid control ECU), inspect and repair the connector or wire harness. The DTCs were possibly output due to a bad connection of the connector terminal.

B -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal

A -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) How To Proceed With Troubleshooting